I like the look of wooden letters on the wall, and I want to do something like that. I'm not sure what I want to spell out yet (maybe something like "e komo mai"), but I do know I want to make the letters myself.

I'm not very good at woodworking and don't have a jigsaw (or pretty much any other saw that would work). Any suggestions on what to make the letters out of that could be cut with an Xacto knife or box cutter or steak knife or something? Or something cheap and easy to sculpt (please, not fimo or related!)